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Maximize drilling performance in Russia horizontal development well

ERIELL wanted to maximize drilling performance and minimize risk in three sections of a Samburgskoe field horizontal development well in north central Russia. The well plan called for drilling a vertical 11 5/8-in section from the 13 3/8-in casing point at 450-m MD to 1,650-m MD, followed by an 85/8-in build section to 3,586-m MD and a 6-in horizontal section to TD at 4,371-m MD.

Design custom BHAs to drill shoe to shoe with one BHA per section

Engineers at the petrotechnical engineering center worked closely with the drilling contractor and the operator’s engineering teams to
establish detailed plans for drilling each section and select application-specific technologies for each section’s BHA. The IDEAS integrated
design platform was used to simulate the drilling environment, determine optimum surface drilling parameters, and design one BHA for each hole section.

Delivered well 15 days ahead of schedule

The integrated drilling system increased ROP by reducing shock and
vibration and stick/slip and delivering good hole stability and hole
cleaning. The application-specific BHAs drilled each section shoe to
shoe with one BHA for each section, eliminating runs to pick up LWD
tools and wiper trips. Each well section was drilled at an average ROP
of 26.8 m/h. Total well construction time was 32 days, 15 days ahead of
schedule—a record for ERIELL in the region. Wellbore quality allowed
successful casing and liner running in all hole sections